Half to feedebick light



(No Model.)

H K. KRIEBEL. HOT WATER HEATER.

Patented Mar. 2, 1886.

N. PETERS. Phowuthngmplwr. Washington, DC.

UNITED STATES ATENT FFICEO HOSEA K. KRIEBEL, OF WEST POINT,PENNSYLVANIA, ASSIGNOR OF HALF TO FREDERICK LIGHT, JR, OF SAME PLACE.

HOT-WATER H EATER.

SPECIFICATION forming part of Letters Patent No. 337,068, dated March 2,l86.

Application filed October 6, 1885. Serial No. 179,129. (No model.)

1" 0 all whom it may concern.-

Be it known that I, HOSEA K. KRIEBEL, of Vest Point, Montgomery county,State of Pennsylvania, have invented an Improvement in Hot-WaterHeaters, of which the following is a specification.

My invention has reference to hot-water heaters or boilers, especiallyadapted for do mestic purposes; and it consists in certain specificconstructions of the boiler and its appendages, all of which are fullyset forth in the following specification, and shown in the accompanyingdrawings, which form part thereof.

The object of my invention is to provide a suitable construction ofheater for heating and causing a circulation of hot water for heatinghouses, whereby it shall require the least at tention with the greatestheating capacity.

In the drawings, Figure l is a sectional elevation on line :0 x of ahot-water-heating boiler embodying my improvements, and Fig. 2 is asectional plan view of same on line 3 y.

A is the outer shell of the boiler, and B is the inner shell, formingthe fire-box, and having its crown-sheet (which is below the waterlevel)connected by a tube, G, with the smokebox D, which is covered byacast-iron cap or plate, P, from which the chimney E emerges.

The bottom of the smoke-box flue O and crown-sheet of the fire-box ispreferably made of cast-steel, as indicated; but it may be made ofwrought-iron plate, if desired.

F is an annular hollow ring-shape casting, and is connected to thecrown-sheet of the firebox B by a series of tubes, G, screwed into thecasting F at the bottom, and flanged into the crown-sheet at the top,and this ring is located a short distance above the grate-bars I. Thesegrate-bars may be rigid, or of the self-raking pattern.

J is the fire-door, and K is the draft-door, of the ash-pit.

H is a magazine-tube depending from the cap-plate B, being closed at thetop by a removable cover, h, and having the bottom extending near thegrate I and just below the ring F. This tube H passes down through theflue O, leaving the annular passage-way around the same, and issurrounded at its lower part by the tubes G and ring F. The

upper portion of this magazine-tube H may be provided with holes orapertures R, connecting with the smoke-box, so that any gases distilledfrom the coal descending through the magazine-tube may pass off and beconsumed in the smoke-box.

M is a regulator of the ordinary construe tion, having the usualdiaphragm of flexible material, which is acted on in this instance bythe water instead of steam, as is usually the case, the regulator beingconnected to the boiler by the pipe m, below the water-level. The leverof the regulator is connected to the butterfly-valve L in the chimney E,and by a chain, N, it is connected with a draft-regulator valve, K. Asthe pressure increases, the diaphragm is moved, the lever is rocked, andthe butterfly-valve L is closed, reducing the draft and lowering thetemperature, the ob- 7o ject being to maintain thetemperature andpressure substantially the same at all times, this being necessary in apractical household heater.

Vhile Iprefer the construction shown, I do not limit myself to thedetails thereof, as they may be modified in various ways withoutdeparting from my invention.

Having now described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. A hot-water boiler consisting of the outer shell, A, and innerfire-box, B, forming an annular water-space about the fire-box, incombination with annular hollow heating-ring F and water-tubes G,connecting said ring with the crown-sheet of the firebox, said ring Fbeing suspended in the fire-box, so that the flame and heat in risingsurround it and pass freely about it on all sides, substantially as andfor the purpose specified.

2. A hotwater boiler consisting ofthe outer shell, A, and innerfire-box, B, forming an annular water-space about the fire-box, incombination with annular hollow heating-ring F 5 and water-tubes G,connecting said ring with the crown-sheet of the fire-box, said ring Fbeing suspended in the fire-box, so that the flame and heat in risingsurround it and pass freely about it on all sides, tubes 0 through theupper part of the boiler and connecting the fire-box with the smoke-box,magazinetube H, extending down between the tubes G and through the tube0 and ring F, close to the grate, and the grate I, substantially as andfor the purpose specified. v

3. A hot-waterboiler consisting of the outer shell, A, and innerfire-box, B, in combination with annular hollow heatingring F andwater-tubes G, connecting said ring with the crown-sheet of thefire-box, magazinetube H, extending down between the tubes G and throughthe tube 0 and ring F, close to the grate, the grate I, smoke-box D, andflue 0, connecting the fire-box and smoke-box, substantially as and forthe purpose specified.

4. The outer shell, A, inner fire-box, B, the

the flue O, annular suspended heating-ring F, 20

exposed to heat on all sides, and tubes G, connecting said ring with thecrown-sheet of the fire-box, substantially as and for the purposespecified.

In testimony of which invention I hereunto 25,

set my hand.

HOSEA K. 'KRIEBEL.

WVitnesses:

R. M. HUNTER,

ANDREW ZANE, J r.

